#head {
    width: 7.5rem;
    height: 0.9rem;
    background-color: #ffffff;
    margin: auto;
}

.head {
    width: 6.9rem;
    height: 100%;
    padding: 0 0.3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0px 5px 15px 0px rgba(0, 0, 0, 0.05);
}

.head img {
    width: 2.28rem;
    height: 0.7rem;
    display: block;
}

.head_nav {
    width: 0.45rem;
    height: 0.3rem;
    position: relative;
    cursor: pointer;
}

.head_nav span {
    width: 0.35rem;
    height: 2px;
    display: block;
    position: absolute;
    left: 0;
    background-color: #333333;
    transition: width .5s,transform .5s,background-color .5s;
}
 
.head_nav span:nth-child(1) {
    top: 0.01rem;
}

.head_nav span:nth-child(2) {
    width: 0.3rem;
    top: 0.11rem;
}

.head_nav span:nth-child(3) {
    top: 0.22rem;
}
.nav_list{
    width: 100%;
    height: 100%;
    background-color: #2e2f34;
    z-index: 100;
    position: fixed;
    top: 0;
    right: -100%;
    overflow: hidden;
    transition: right .5s ease;
}
.nav_ul{
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.2rem 0;
}
.nav_li{
    width: 6.9rem;
    padding: 0 0.3rem;
    height: auto;
}
.nav_max{
    width: 100%;
    height: 1.28rem;
    font-size: 0.36rem;
    text-align: center;
    line-height: 1.28rem;
    display: block;
    color: #999999;
}
.now{
    color: #ffffff !important;
}